FREE-FLOWING, SOLID, HIGH ACTIVE ALKYL ETHER SULFATES

摘要

The present invention relates to free flowing, solid, high active alkyl ether sulfates and process for manufacturing such solid alkyl ether sulfates at processing temperature of 80° C. and above on an industrial scale. The solid alkyl ether sulfates have improved flow properties, improved appearance, and improved solubility.

主权项

1. The process for preparing free-flowing, solid, high active alkyl ether sulfates comprising the steps of
(i) feeding alkyl ether sulfate, amorphous zeolite, carbonate and structurant into a mixer to form a mixture; (ii) heating the mixture at 80-120° C. followed by the addition of crystalline zeolite to the mixture; (iii) cooling the mixture to a temperature of up to 70° C. to obtain a solid form of the mixture and (iv) coating the solid form with a coating material.